The document details a complaint made by an individual against Humberside Police regarding civilian staff impersonating police officers during an unlawful detention in December 2015. Despite reporting the incident as a crime, the police deemed it a complaint under the Police Reform Act and did not pursue it properly, leading to repeated appeals by the individual. The Independent Police Complaints Commission reviewed the appeal and determined that the complaint should have been recorded, indicating a failure in the police's handling of the case.